大约有 44,500 项符合查询结果（耗时：0.0450秒） [XML]
Fitting empirical distribution to theoretical ones with Scipy (Python)?
...teger values ranging from 0 to 47, inclusive, e.g. [0,0,0,0,..,1,1,1,1,...,2,2,2,2,...,47,47,47,...] sampled from some continuous distribution. The values in the list are not necessarily in order, but order doesn't matter for this problem.
...
Django REST framework: non-model serializer
...
2 Answers
2
Active
...
How to export a Vagrant virtual machine to transfer it
...
121
You have two ways to do this, I'll call it dirty way and clean way:
1. The dirty way
Create a...
How to get default gateway in Mac OSX
... similar to:
route to: 98.137.149.56
destination: default
mask: 128.0.0.0
gateway: 5.5.0.1
interface: tun0
flags: <UP,GATEWAY,DONE,STATIC,PRCLONING>
recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire
0 0 0 0 ...
Measure and Benchmark Time for Ruby Methods
...
112
You could use the Time object. (Time Docs)
For example,
start = Time.now
# code to time
finish...
Python list iterator behavior and next(iterator)
...nge(10)))
>>> for i in a:
... print(i)
... next(a)
...
0
1
2
3
4
5
6
7
8
9
So 0 is the output of print(i), 1 the return value from next(), echoed by the interactive interpreter, etc. There are just 5 iterations, each iteration resulting in 2 lines being written to the terminal.
If...
python plot normal distribution
...
216
import matplotlib.pyplot as plt
import numpy as np
import scipy.stats as stats
import math
mu...
How to sort an array in descending order in Ruby
...0.times {
ary << {:bar => rand(1000)}
}
n = 500
Benchmark.bm(20) do |x|
x.report("sort") { n.times { ary.sort{ |a,b| b[:bar] <=> a[:bar] } } }
x.report("sort reverse") { n.times { ary.sort{ |a,b| a[:bar] <=> b[:bar] }.reverse } }
x.report("sort_by ...
Counting the Number of keywords in a dictionary in python
...
429
len(yourdict.keys())
or just
len(yourdict)
If you like to count unique words in the file, ...
C++11 range based loop: get item by value or reference to const
Reading some examples of range based loops they suggest two main ways 1, 2, 3, 4
4 Answers
...